Corner bead



Sept. 15, 1925. 1,553,960

F; a PLANETT comma Bum Filed April 22, 1924 Z ATTORNEY gal PatentedSept. 15, 1925.

UNITED STATES waste PATENT OFFICE.

FRED E. PLANETT, OF OAKLAND, CALIFORNIA, ASSIGNOR TO PLANET'I MANUFAC-TUBING COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

CORNER BEAD.

Application filed April 22 To all whom it may concern:

Be it known that I, FRED E. PLANETT, a citizen of the United States,residing at Oakland, in the county of Alameda and State of California,have invented certain new and useful Improvements in Corner Beads, ofwhich the following is a specification.

My invention relates to metallic angle or corner beads, and inparticular to the type employed at the angles in plastering and cementwork, both indoors and out.

Present corner beads of metal that I am familiar with, consist of a unitstrip of sheetmetal formed angularly with two flanges and with a smallround ridge at the meeting angle. Each flan e of the bead is perforatedwith holes, the plaster oozing through the holes as the same is beingspread on the furred walls. The ridge acts as a thickness gage for theplaster and the holes serve as a key for holding the plaster at theangles.

For indoor work this type of head, when the plaster is not too hard,serves fairly well, but when applied to the angles of exterior work itis not efficient, because cement-coated walls employ a harder andstiffer plaster and are reinforced with wire lathing. The latter shouldextend around the corners and angles, but owing to the difficultiesencountered in trying to position the present corner bead over theirregularly bent and more or less unyielding wire mesh lathing, it iseasier to affix the corner bead direct to the wood or sheathing support,then cut and fit the wire lathing to the bead flange. This is invariablycarelessly done, resulting in due time in a cracked wall near thecorner. Also the spread plaster does not thoroughly get through theholes and behind the flanges to fill up the angle space therebetween.For durable construction the plaster at the corners and angles should bewell worked in thereat.

The major object of my invention is to overcome the above difficultiesand inefficiences by the provision of an all-wire corner head of simpleconstruction, easily applicable to angles and adapted to permit theplaster or other coating to thoroughly and easily mesh around andbetween the wire.

Another important object is the provision of a corner bead that can bejust as easily applied to a corner having wire mesh lathing extendingaround the same as in ideal 1924. Serial No. 708,214.

' outdoor corner-construction work, as a corner not requiring suchreinforcement as in indoor work,

A further object is to provide the head with rigid abutting or bearingsurfaces, for definite and accurate outstanding spacing means for thelongitudinal rod of the head.

I attain the above objects by the novel construction of my corner beads,and other objects and advantages of the invention will appear in thesubjoined description of the v accompanying sheet of drawings, in which:

Figure 1 is a horizontal section of a corner of outdoor constructionwork, such as the corner of a cement-coated bungalow, and has myinvention applied thereto.

Fig. 2 is a side elevation of Fig. 1 showing my invention in full andbut part of the which has been applied in any of the usual Ways thebuilding-paper 6, and the wire mesh lathing 7 for plaster reinforcement.The lathing has been turned or extended around the corner as shownclearly in Fig. l, and outstands a fixed distance from the wall surfaceby common furring devices (not shown). My invention consists of a stoutand stiff wire rod 8 having lateral branches in the form of shoulderedstaples 9, 10 being the shoulders and bearing surface to outstand therod 8 a definite predetermined distance from the corner. These staplesare also of wire and of lighter gage than the rod, and are rigidlysecured to the rod preferably by spot-welding as I have found thismanner of securement very practical. The welded parts result in anintegral and homogeneous efficient union as shown in section at 11, Fig.1.

The staples are spaced at intervals along the rod 8, Figs. 2 and 4, andsecured thereto at right angles and in alignment. In Figs. 1 and 2, Ihave shown the staple substantially in the shape of the letter U, withthe extremities turned to form the eyelet 12 for the reception of,seci;ring means such as may then be driven in any or all eyelet holes.In the application .of the modified bead, the staple is also insertedsimilarly through the mesh openings, and the staple leg 15 driven in tothe shoulder 10. One may position and drive the latter head in by sight,or mark or scribe a gage line parallel with the corner edge, or use agage. board.

In Fig. 1, 16 represents the first coat of plaster which is spread flushwith the furring surface and the furred outstanding depth of my staplelegs, and 17 represents the finishing coat of plaster spread flush withthe outer surface of the rod 8. The dot and-dash line 18 of Fig. 3represents the finished surface when the modified bead is employed.

It is evident that when my corner bead is used, the plaster or cement,whether soft or hard and stiff, will easily mesh around the rod and wirestaple and leave no voids or unfilled spaces subject to corrosion .andweakness of the corner structure.

Having thus illustrated and described my invention, what I claim as newand desire to secure byLetters Patent of the United States, is thefollowing:

1 A unitary corner bead construction of .the character described,comprising a stiff longitudinal, rod having staples integrally andrigidly connected thereto at spaced intervals, said staples providedwith shoulders to' abut the wall and outstand the rod from .the wall apredetermined distance. 7

2. In combination with the corner portion of a wall provided with anoutstanding reinforcing wire mesh lathingthereat, of a corner beadadapted to embrace the lathing comprising a longitudinal rod havingstaples rigidly connected thereto adapted to outstand the rod from thecorner a fixed distance, and the termination of the staples adapted tobe inserted through the mesh openings of thelathing thereby preventinginterference between the lathing and the bead at the said corner.

In testimony whereof I affix my signature.

FRED E. PLANETT.

